How to fetch data from a user control

Question

Hi
I am novice in this field and finding some problem.Please help me out.

I am using asp.net 1.1 with c#. In my web pages i've to enter date several times from the users.So for that i thought of using a user Control or a Custom Control which shows a text box and a button. on the click of that button the calender is to be shown.
I am able to make that user control but i dont know how to fetch date from the textbox on the page(where the control is added) when the submit button is pressed.

if it could be done in some other way then tell me that also.

Please help me as soon as possible.Thanks in advance
ashish